Toronto’s lawns are newly a-bristle with municipal election signs, a sure sign that the city’s mayoral race is entering its frantic final weeks. The four leading mayoral candidates have just 20 days to convince voters they’re the ones to lead Canada’s biggest city.

Starting at noon ET, get a fresh serving of each candidate’s political rhetoric as the Post’s City Hall reporter Natalie Alcoba live-tweets Tuesday’s mayoral debate. The topic? Bay Street vs Main Street: Vision, Leadership and the Future of Toronto.